We have to do this:
1. Go into the forest at the end of March – early April
2 Select birch, it must be “thick”

3. Now collect the juice ..
– Take 1-2 mm drill bit, drill a hole in the Andes stvoleyf at an altitude of not less than 1.5 m;
– Drilling depth – not more than 1,5 cm;
– Put the “trough” for draining birch juice in a jar;
– Close the gauze to fly did not get …

Wait for 1 day …

You collect about 2-3 liters of juice.

Then make sure to:
4. The hole in the birch should be closed “bee with pitch” …
It is a natural substance that bees produce